package Servlets;

import Herramientas.FileEngine;
import Herramientas.Herramientas;
import SistemaDAOS.UsersDAO;
import SistemaDTOS.UsersDTO;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Alan Gonzalez
 */
@WebServlet(name = "Login", urlPatterns = {"/Login"})
public class Login extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        HttpSession session = request.getSession();
        try {
            String name = request.getParameter("user");
            String pass = request.getParameter("pass");
            
            Herramientas h = new Herramientas();
            UsersDTO usersDTO = new UsersDTO();
            usersDTO.setName(name);
            usersDTO.setPass(h.encriptaMD5(pass)); // se carga al objeto de transferencia el hash MD5

            int banderaAcceso = 0;
            UsersDAO usersDAO = new UsersDAO();
            banderaAcceso = usersDAO.loginUsuario(usersDTO);
            // validando 

            // VALIDACION PROXIMAMENTE SERA DINAMICA
            if (banderaAcceso == 1) {
                if (session.getAttribute("errorlogin") != null) {
                    session.removeAttribute("errorlogin");
                }
                // SUBO EL USUARIO A SESION
                int id = usersDAO.idUsuario(usersDTO);
                //usersDTO.setId(id);
                usersDTO = usersDAO.userPorID(id);
                session.setAttribute("userUpDTO", usersDTO);
                //response.sendRedirect("./Main?action=principal");/ERP/TarryTPV?action=start
                RequestDispatcher d = request.getRequestDispatcher("./Main?action=principal");
                d.forward(request, response);
            } else if (banderaAcceso == 0) {
                response.sendRedirect("./Main?action=errorlogin");
            }
            // VALIDACION PROXIMAMENTE SERA DINAMICA 
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
